---
product_id: 567186663
title: "Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100"
brand: "avantree"
price: "€ 264.91"
currency: EUR
in_stock: true
reviews_count: 5
category: "Avantree"
url: https://www.desertcart.de/products/567186663-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet
store_origin: DE
region: Germany
---

# Lightweight ergonomic design, all-day comfort 2.4G RF tech, ultra-low 30ms latency 20-hour battery life, marathon-ready Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100

**Brand:** avantree
**Price:** € 264.91
**Availability:** ✅ In Stock

## Summary

> 🎬 Elevate your silent party game with zero lag and total comfort!

## Quick Answers

- **What is this?** Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 by avantree
- **How much does it cost?** € 264.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/567186663-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet)

## Best For

- avantree enthusiasts

## Why This Product

- Trusted avantree brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Comfort Meets Durability:** Soft memory foam earpads and adjustable headband ensure pressure-free, long-wear comfort.
- • **Seamless Group Listening:** Scale up to 100 headphones for epic silent events without disturbing neighbors.
- • **Lag-Free Audio Experience:** 2.4G RF tech slashes audio delay to ~30ms, outperforming Bluetooth standards.
- • **Personalized Sound Control:** Built-in individual volume controls let everyone tune in their perfect level.
- • **Endurance for Binge Sessions:** Up to 20 hours of playback keeps your movie nights and concerts going strong.

## Overview

The Avantree Quartet-Extra is a 2.4G RF wireless headphone add-on designed exclusively for the Avantree Quartet system. It supports up to 100 simultaneous users, delivering ultra-low latency (~30ms) audio with superior sound quality compared to Bluetooth. Featuring individual volume controls, lightweight ergonomic design with memory foam earpads, and an impressive 20-hour battery life, it’s built for extended group entertainment like outdoor movies and silent concerts.

## Description

Avantree Quartet-RX Extra RF Wireless Earpiece for [Avantree Quartet Pack for Wireless TV], Up to 100 Devices, Individual Volume Controls, 2 EQ Modes, 20H Playback Time

Review: Faux contact s allume et s éteint constamment conséquence batterie déchargée - Déçue de mon deuxième écouteur acheté il déraille en ne sachant plus se déconnecter. Il tourne en boucle s allumant et s éteignant du coup la batterie toujours vide.
Review: Perfect - I really do prefer the headphones with metal slides to adjust length as they last much longer. Sound is great and fit just as I like.

## Features

- [ONLY WORKS WITH QUARTET] This single pair of 2.4G wireless headphones is an add-on for the Avantree Quartet bundle (sold separately). Add up to 100 of these headphones to the Quartet bundle and enjoy an outdoor movie or silent concert without disturbing the neighbors.
- [LESS DELAYS, BETTER QUALITY] The Quartet-Extra headphones feature 2.4G technology and NOT Bluetooth. This reduces the audio lag down to ~30ms -- significantly less than the 220ms of standard Bluetooth and even the 40ms of aptX Low Latency. This also improves overall sound quality due to 2.4G's higher bit rate & extended bandwidth.
- [INDIVIDUAL VOLUME CONTROL] Each pair of wireless headphones are equipped with built-in individual volume controls, so everyone can listen at their own desired volume.
- [LIGHTWEIGHT & COMFORTABLE] These headphones are ergonomically designed to be lightweight and flexible, featuring soft memory foam earpads and an adjustable headband. Enjoy all-day, pressure-free use. NOTE: Replaceable earpads are available for purchase.
- [EXTENDED PLAYTIME] With a battery life of up to 20 hours, these headphones will last through your longest movie or concert sessions with time to spare.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09DKS353X |
| Age Range Description | Adult |
| Antenna Location | Family Movie, Watch TV |
| Audio Driver Type | Dynamic Driver |
| Audio Latency | 30 Milliseconds |
| Battery Average Life | 2E+1 Hours |
| Battery Charge Time | 2 Hours |
| Box Contents | Ear Cushions |
| Brand | Avantree |
| Brand Name | Avantree |
| Cable Features | Without Cable |
| Carrying Case Color | Black |
| Carrying Case Material | Faux Leather |
| Colour | Black |
| Compatible Devices | Quartet Bundle Transmitter |
| Control Method | Remote |
| Control Type | Volume Control |
| Controller Type | wireless volume controller |
| Customer Reviews | 4.1 out of 5 stars 44 Reviews |
| Ear Placement | Over Ear |
| Earpiece Shape | Over Ear |
| Enclosure Material | Plastic |
| Form Factor | Over Ear |
| Frequency Range | 20 Hz - 20,000 Hz |
| Frequency Response | 20000 Hz |
| Headphone Form Factor | Over Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 32 Ohms |
| Impedance Unit of Measure | 32 Ohms |
| Is Autographed | No |
| Item Weight Unit of Measure | 220 Grams |
| Manufacturer | Avantree |
| Model Name | WSHT-5049-RX |
| Model Number | WSHT-5049-RX |
| Network Connectivity Technology | Wireless |
| Noise Control | None |
| Number of Items | 1 |
| Number of Power Levels | 5 |
| Product Features | Lightweight |
| Specific Uses For Product | Home Theater |
| Style Name | Single Headphones |
| Subject Character | no character |
| Theme | Movie |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | RF |

## Product Details

- **Brand:** Avantree
- **Colour:** Black
- **Form Factor:** Over Ear
- **Impedance:** 32 Ohm
- **Frequency Response:** 20000 Hz

## Images

![Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 1](https://m.media-amazon.com/images/I/61CF7f0RcWL.jpg)

## Questions & Answers

**Q: what cleaning products can i use to clean the headphones?**
A: These are the cleaning products we recommend for use on our headphones.
Disinfecting Wipes
https://www.amazon.com/dp/B08BKR9YT6
You can also get washable headphone covers for easy cleaning.
https://www.amazon.com/dp/B07BP4PCVY

## Customer Reviews

### ⭐⭐ Faux contact s allume et s éteint constamment conséquence batterie déchargée
*by F***O on 25 August 2025*

Déçue de mon deuxième écouteur acheté il déraille en ne sachant plus se déconnecter. Il tourne en boucle s allumant et s éteignant du coup la batterie toujours vide.

### ⭐⭐⭐⭐⭐ Perfect
*by D***T on 1 November 2024*

I really do prefer the headphones with metal slides to adjust length as they last much longer. Sound is great and fit just as I like.

### ⭐⭐⭐⭐⭐ Sinls to silent party system
*by D***M on 30 December 2025*

Added this to my theater audio now have 5 one for each family member

## Frequently Bought Together

- Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100
- Avantree Quartet - 4 Wireless Headphones & 1 Transmitter for Multiple Group Listening Scalable to 100 with No Lip-Sync Delays for TV Watching, Silent Discos, Hearing Assistance in Church, and More
- Avantree [Super Stable] Neetto Dual Headphones Stand for Desk, Aluminum Alloy & Metal Gaming Headsets Holder Hanger for Sennheiser, Sony, Audio-Technica, Bose, Beats, Akg, Display Mount - HS908

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-19*